CN109816194A - A kind of Iron Ore Powder cost performance comprehensive analysis method and its system - Google Patents
A kind of Iron Ore Powder cost performance comprehensive analysis method and its system Download PDFInfo
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- CN109816194A CN109816194A CN201811471829.4A CN201811471829A CN109816194A CN 109816194 A CN109816194 A CN 109816194A CN 201811471829 A CN201811471829 A CN 201811471829A CN 109816194 A CN109816194 A CN 109816194A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 374
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 187
- 238000004458 analytical method Methods 0.000 title claims abstract description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 167
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000000843 powder Substances 0.000 claims abstract description 61
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 59
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 28
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000004615 ingredient Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 49
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 34
- 239000000654 additive Substances 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 18
- 239000000395 magnesium oxide Substances 0.000 claims description 17
- 230000000996 additive effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 238000005272 metallurgy Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 241001062472 Stokellia anisodon Species 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000004663 powder metallurgy Methods 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 description 19
- 229910052906 cristobalite Inorganic materials 0.000 description 19
- 229910052682 stishovite Inorganic materials 0.000 description 19
- 229910052905 tridymite Inorganic materials 0.000 description 19
- 229910052593 corundum Inorganic materials 0.000 description 14
- 229910001845 yogo sapphire Inorganic materials 0.000 description 14
- 238000011156 evaluation Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000707825 Argyrosomus regius Species 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of Iron Ore Powder cost performance comprehensive analysis methods, specifically comprise the following steps: step 100, several equivalent Iron Ore Powders to be assessed are fired into sinter, detect the scaling loss and internal chemical ingredient of each sinter；The content of step 200, the aluminium oxide in the sintered each Iron Ore Powder of calculating and silica, and aluminium oxide and silica are carried out assigning a point processing according to content；A variety of sinters are respectively enterd blast furnace process and obtain the pig iron by step 300；The pig iron amount that step 400, the various sinters of statistics generate, and pig iron amount is carried out to assign a point processing, the scoring of pig iron amount, aluminium oxide and silica scoring are weighted and averaged and is integrated as standard scores；Various Iron Ore Powders are formed the totle drilling cost of the pig iron by step 500, statistics, and the standard scores of a variety of Iron Ore Powders and totle drilling cost are compared, and obtain various single fire mine cost performances；This programme obtains the accurate Iron Ore Powder metallurgy value evaluating system of comparison, while the cost performance convenient for directly judging Iron Ore Powder.
Description
Technical field
The present invention relates to Iron Ore Powder technical field, specially a kind of Iron Ore Powder cost performance comprehensive analysis method and its system.
Background technique
Since 2011, since large crude fuel such as iron ore holds at high price, steel market is of flowing rhythm, steel enterprise
Industry enters " meagre profit " epoch.In face of severe Market Situation, numerous domestic iron and steel enterprise implements low cost strategy one after another.It is low at
The product of this and high quality is the magic weapon that the market competitiveness improves in enterprise.How iron ore is economically chosen, is allowed to existing
Have and be not only able to satisfy STEELMAKING PRODUCTION requirement under working condition, but also ironmaking cost can be reduced to the maximum extent, be enterprise improve competitiveness,
Increase the key of economic well-being of workers and staff.Therefore, in the case where current iron ore is many kinds of, Iron Ore Powder cost performance appraisement system is established,
Select the iron ore of high performance-price ratio most important to ironmaking cost is reduced.
Iron Ore Powder cost performance evaluation method common at present mainly has a ton degree price evaluation method, grade acid-base balance rating method
With Iron Ore Powder single fire method etc., these methods are substantially from ferrous grade angle, and iron ore cannot be fully described and be sintered
The influence of process and blast furnace ironmaking process to cost.
Ton degree price evaluation method: i.e. using the ton degree price of Iron Ore Powder as Appreciation gist.Its advantage is that calculate simply, it can be straight
See the value of reflection Iron Ore Powder ferro element；The disadvantage is that cannot reflect the influence of Iron Ore Powder gangue content.
Grade acid-base balance rating method: the evaluation method considers iron ore neutral and alkali and acid gangue content to blast furnace smelting
The influence of refining, the disadvantage is that not can correctly reflect the grade of ore or the quantity of slag of generation in the variation and blast furnace ironmaking process of sintering process
Influence to coke ratio is smelted.
Iron Ore Powder single fire method: being that single Iron Ore Powder is burnt into sinter according to certain basicity to compare its single fire and be worth,
This is currently used method.Its advantage is that the variation of sintering process ferrous grade is described, the disadvantage is that not considering blast furnace process
The variation of ferrous grade in the process.
In addition most for the cost performance standard of Iron Ore Powder only from iron content product in above-mentioned Iron Ore Powder cost performance evaluation method
Position triggering, but for Al2O3, MgO and SiO2Influence of the content to blast furnace slag making system does not judge, seriously affects to iron ore
The accuracy of powder cost performance evaluation, and system also is judged without more intuitive cost performance at present, Iron Ore Powder cost performance is comprehensive to divide
The result that the method for analysis obtains can not directly represent cost performance, there is many redundancies instead, influence to Iron Ore Powder cost performance
Analysis.
Summary of the invention
In order to overcome the shortcomings of prior art, the present invention provide a kind of Iron Ore Powder cost performance comprehensive analysis method and its
System can effectively solve the problem of background technique proposes.
The technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of Iron Ore Powder cost performance comprehensive analysis methods, specifically comprise the following steps:
Step 100, several equivalent Iron Ore Powders to be assessed proportion respectively mixes multiple additives, and is fired into
Sinter detects the scaling loss and internal chemical ingredient of each sinter, records iron ore powder sintering fuel cost and raw materials for sintering cost；
The content of step 200, the aluminium oxide in the sintered each Iron Ore Powder of calculating and silica, and to aluminium oxide and oxidation
Silicon carries out assigning a point processing according to content, obtains the influence scoring of aluminium oxide and silica；
The sinter that a variety of Iron Ore Powders are formed is respectively enterd blast furnace process and obtains the pig iron, and calculates height by step 300
Furnace fuel cost and raw materials for metallurgy cost；
The pig iron amount that step 400, the various sinters of statistics generate, and pig iron amount is carried out to assign a point processing, and at the same time
The scoring of pig iron amount, aluminium oxide and silica scoring are weighted and averaged, weighted average total value is integrated as standard scores；
Various Iron Ore Powders are formed the totle drilling cost of the pig iron by step 500, statistics, and by the standard scores and assembly of a variety of Iron Ore Powders
This comparison obtains various single fire mine cost performances.
As a preferred technical solution of the present invention, in step 100, Iron Ore Powder passes through the change that single fire method is sintered
Studying point mainly has iron oxide, silica, calcium oxide, magnesia and aluminium oxide.
As a preferred technical solution of the present invention, in step 200, a point tool for processing is assigned to aluminium oxide and silica
Body step are as follows:
Each iron ore powder sintering is obtained aluminium oxide and magnesia and compares respectively by step 201, obtains aluminium oxide and magnesia
Ratio；
Alumina ratio benchmark and silica benchmark after the different iron ore powder sintering of step 202, setting；
The scoring that alumina content is in reference range is set as 100 points by step 203, the oxidation smaller than a reference value
Aluminium parameter is scaling up scoring, and the aluminium oxide parameter bigger than a reference value reduces scoring in proportion, obtains the oxidation of each Iron Ore Powder
Aluminium scoring；
The value that silica is in reference range is set as 100 points by step 204, and the silica of remaining Iron Ore Powder presses root
Decline score according to rule, obtains the silica scoring of each Iron Ore Powder.
As a preferred technical solution of the present invention, in step 100 and step 300, the raw materials for sintering cost and
Blast furnace process cost of material is specially additive cost when being sintered and smelting.
As a preferred technical solution of the present invention, in step 400, the specific step of a variety of Iron Ore Powder standard scores is obtained
Suddenly are as follows:
Step 401, the pig iron amount for generating various sinters compare, and pig iron amount maximum value is set as 100 points, remaining
The pig iron amount of sinter declines in proportion, obtains the pig iron amount scoring of each Iron Ore Powder；
Step 402 is weighted weight processing to the scoring of pig iron amount, aluminium oxide scoring and silica scoring, obtains the pig iron
The weighting point of amount, aluminium oxide and silica；
Step 403, the pig iron amount by after weighted average, aluminium oxide and silica score add up, and it is cumulative after
Score value carry out secondary assignment processing, obtain the standard scores of every kind of Iron Ore Powder.
As a preferred technical solution of the present invention, in step 403, the specific steps of secondary assignment processing are as follows: will
The average weighted score that various sinters obtain compares, and average weighted score maximum value is set as 100 points, remaining sinter adds
Power total score declines in proportion, obtains the standard scores of each Iron Ore Powder；
As a preferred technical solution of the present invention, in step 500, the totle drilling cost is specially to test iron used
Fuel used in fuel used in miberal powder cost of material and iron ore powder sintering and additive price and Iron Ore Powder blast furnace process and
Additive price summation, by the standard scores of each Iron Ore Powder compared with corresponding price summation, ratio represents various Iron Ore Powders
Cost performance.
In addition the present invention also provides a kind of Iron Ore Powder cost performance overall analysis system, specifically include iron ore powder sintering module,
Information logging modle, single fire mining and metallurgy refining module and assignment processing module, the assignment processing module are also connected with for judging iron
The cost performance processing module of miberal powder cost performance, the Iron Ore Powder obtain the pig iron, the information through oversintering and blast furnace Metallurgical processing
Energy consumption of the logging modle essential record in sintering and blast furnace ironmaking process, life of the assignment processing module to every kind of Iron Ore Powder
It carries out at material according to unified standard assignment.
As a preferred technical solution of the present invention, the iron ore powder sintering module is by Iron Ore Powder, iron bearing slag making material, molten
The additives such as agent and fuel, ratio cooperates as required, adds water to be mixed and made into graininess sinter mixture, is laid in pallet
On, it is blocking through igniting down draft sintering.
As a preferred technical solution of the present invention, the cost performance processing module is to obtain assignment processing module
Iron Ore Powder assessed value, respectively compared with each Iron Ore Powder that information logging modle obtains smelts totle drilling cost, corresponding Iron Ore Powder ratio
Represent cost performance.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention is by Iron Ore Powder-sintering-blast furnace process simulation system, during having comprehensively considered iron ore powder sintering
Al2O3And SiO2Content is to the impact effect of sintering process and sinter, in combination with the pig iron content that blast furnace metallurgy generates,
Summation analyzes the cost performance of Iron Ore Powder, to obtain the accurate Iron Ore Powder metallurgy value evaluating system of comparison；
(2) present invention is to Al2O3And SiO2Content and pig iron content carry out assignment scoring processing, according to Iron Ore Powder
Cost performance influence degree carries out weight analysis, and calculates the standard scores of every kind of Iron Ore Powder, and by standard scores and total energy consumption phase
Than the cost performance for directly obtaining every kind of Iron Ore Powder, convenient for directly judging the highest Iron Ore Powder of cost performance, comprehensive point of cost performance is improved
The efficiency of analysis.
Detailed description of the invention
Fig. 1 is system construction drawing of the invention；
Fig. 2 is cost-efficiency analysis method flow diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of Iron Ore Powder cost performance overall analysis system, iron ore powder sintering mould is specifically included
Block, information logging modle, single fire mining and metallurgy refining module and assignment processing module, the assignment processing module are also connected with for judging
The cost performance processing module of Iron Ore Powder cost performance, the Iron Ore Powder obtain the pig iron, the letter through oversintering and blast furnace Metallurgical processing
Energy consumption of the logging modle essential record in sintering and blast furnace ironmaking process is ceased, the assignment processing module is to every kind of Iron Ore Powder
Material is generated to carry out according to unified standard assignment.
The iron ore powder sintering module is by additives such as Iron Ore Powder, iron bearing slag making material, solvent and fuel, and ratio is matched as required
It closes, adds water to be mixed and made into graininess sinter mixture, be laid on pallet, it is blocking through igniting down draft sintering.At cost performance
Managing module is the Iron Ore Powder assessed value for obtaining assignment processing module, and each Iron Ore Powder obtained respectively with information logging modle is smelted
Totle drilling cost is compared, and corresponding Iron Ore Powder ratio represents cost performance.
As shown in Fig. 2, the present invention also provides a kind of Iron Ore Powder cost performance comprehensive analysis method, this cost performance appraisal procedure
The comprehensive assessment operation that Iron Ore Powder is carried out according to the analog form of " Iron Ore Powder-sintering-pyrometallurgy ", specifically includes following step
It is rapid:
Step 1: several equivalent Iron Ore Powders to be assessed are proportioned respectively mixes multiple additives, and it is fired into
Sinter detects the chemical component inside each sinter, records iron ore powder sintering fuel cost and raw materials for sintering cost.
This step is mainly sintered Iron Ore Powder, in order to guarantee the uniformity of sintering process, choose first to
Assessment several equivalent Iron Ore Powders, and by the Iron Ore Powder of equivalent respectively according to a certain percentage mix iron content powder, flux and
The burning of the additives such as fuel, sintering is blocking, this sintering process will guarantee that optimal sintering effect, the additive of different Iron Ore Powders are mixed
Composition and division in a proportion example and combustion process can be with different froms；Then the chemical component in agglomerate is detected, every kind of chemical component is calculated
Content.
As the preferred of present embodiment, the chemical component that Iron Ore Powder is obtained through oversintering mainly has iron oxide, titanium dioxide
Silicon, calcium oxide, magnesia and aluminium oxide are only able to detect iron oxide, titanium dioxide when detecting the chemical component in agglomerate
Silicon, calcium oxide, magnesia and the accounting with aluminium oxide, by with the average weighted mode of Iron Ore Powder gross weight, every kind of change can be calculated
The content studied point.
In the sintering process of Iron Ore Powder, it is necessary to the fuel quantity of complete record sintering and the additive capacity of sintering, and
Fuel and additive cost are calculated, convenient for the retrospect of data, while being integrated convenient for the cost in later period.
Step 2: calculating the content of the aluminium oxide and silica in sintered each Iron Ore Powder, and to aluminium oxide and oxidation
Silicon carries out assigning a point processing according to content, obtains the influence scoring of aluminium oxide and silica.
Al2O3There is larger impact to blast furnace slag making system with content of MgO, to make clinker have suitable mobile performance in furnace,
Generally remain the Al in blast furnace slag2O3/ MgO is in a certain range, such as Al in raw material2O3Content increase when, it is necessary to increase the quantity of slag so that
Clinker Al2O3Content be held essentially constant or increase MgO guarantee Al2O3/ MgO ratio is constant, SiO2The variation of content is to basicity
Balance has larger impact, should guarantee the suitable basicity of sinter, guarantees the dual alkalinity of clinker again.
Due to Al2O3Belong to harmful element, theoretically, Iron Ore Powder is original to contain Al2O3It is every to increase by 1%, it is necessary to increase more times
The quantity of slag dilute, therefore the grade negative sense of Iron Ore Powder is influenced it is very big, so the Al of Iron Ore Powder after sintering2O3And SiO2Content
Also as the factor to Iron Ore Powder performance evaluation.
Present embodiment can set the Al of sinter after single fire first2O3Content benchmark, further according to calculated result by a set pattern
Then, the Iron Ore Powder lower than a reference value increases scoring, and the Iron Ore Powder higher than a reference value reduces scoring.
In step 2, a point specific steps for processing are assigned to aluminium oxide and silica are as follows:
It is compared respectively firstly, each iron ore powder sintering is obtained aluminium oxide and magnesia, obtains the ratio of aluminium oxide and magnesia
Value；
Then, alumina ratio and silica a reference value after setting different iron ore powder sinterings；
Thereafter, the scoring that alumina content is in reference range is set as 100 points, the aluminium oxide ginseng smaller than a reference value
Number is scaling up scoring, and the aluminium oxide parameter bigger than a reference value reduces scoring in proportion, and the aluminium oxide for obtaining each Iron Ore Powder is commented
Point；
Finally, the value that silica is in reference range is set as 100 points, the silica content of remaining Iron Ore Powder presses root
Decline score according to rule, obtains the silica scoring of each Iron Ore Powder.
It should be added that aluminium oxide parameter and a reference value are compared, the aluminium oxide parameter smaller than a reference value is specific
Standards of grading can be set as: aluminium oxide parameter 2 points of every reduction, then by benchmark scoring increase by 10 points, aluminium oxide parameter is every
Increase by 2 points, then benchmark scoring is reduced by 10 points.
And for SiO2Content, only its be in reference range, then both can guarantee the suitable basicity of sinter, while
It can guarantee the dual alkalinity of clinker, so benchmark is greater than for remaining or is declined in proportion less than the silica of benchmark,
That is with benchmark SiO2When content differs at 5, scoring is reduced by 10 points on the basis of benchmark 100 divides.
Step 3: the sinter that a variety of Iron Ore Powders are formed, which is respectively enterd blast furnace process, obtains the pig iron, and record out high
Furnace fuel cost and raw materials for metallurgy cost.
Sinter respectively enters blast furnace process, and in the environment of high-temperature exercise, iron oxide is carried out redox reaction smelting
It is smelt the pig iron, and an important factor for the pig iron is then used as the cost performance of Iron Ore Powder to evaluate.
Be preferably as present embodiment, during iron ore powder sintering and blast furnace are metallurgical, raw materials for sintering cost and
Blast furnace process cost of material is specially additive cost when being sintered and smelting, and does not include specific Iron Ore Powder price.
Step 4: counting the pig iron amount that various sinters generate, and pig iron amount is carried out to assign a point processing, and at the same time right
The scoring of pig iron amount, aluminium oxide and silica scoring are weighted and averaged, and weighted average total value are integrated as standard scores, in this implementation
In mode, judge that pig iron yield is greater than Al to the influence degree of Iron Ore Powder2O3Content and SiO2The influence of content, so according to
Pig iron yield, Al2O3Content and SiO2Content, can be to the pig iron, Al in the difference of Iron Ore Powder economics meaning2O3Contain and SiO2Comment
Divide and be weighted weight, according to expert to the estimated value of three factors, the pig iron, Al2O3And SiO2Weighting weight can be divided into
7:2:1。
In this step, the specific steps of a variety of Iron Ore Powder standard scores are calculated are as follows:
A, the pig iron amount for generating various sinters compares, and pig iron amount maximum value is set as 100 points, remaining sinter
Pig iron amount declines in proportion, obtains the pig iron amount scoring of each Iron Ore Powder；
B, weight processing is weighted to the scoring of pig iron amount, aluminium oxide scoring and silica scoring, obtains pig iron amount, oxidation
The weighting of aluminium and silica point；
C, pig iron amount, aluminium oxide and the silica score after weighted average are added up, and it is cumulative after score value
Secondary assignment processing is carried out, the standard scores of every kind of Iron Ore Powder are obtained.
The specific steps of secondary assignment processing are as follows: the average weighted score that various sinters obtain is compared, weighting is total
Point maximum value is set as 100 points, and the average weighted score of remaining sinter declines in proportion, obtains the standard scores of each Iron Ore Powder.
Step 5: various Iron Ore Powders are formed the totle drilling cost of the pig iron by statistics, and by the standard scores and assembly of a variety of Iron Ore Powders
This comparison, obtains various single fire mine cost performances, and the totle drilling cost is specially to test Iron Ore Powder cost of material and Iron Ore Powder used
Fuel and additive price summation used in sintering fuel and additive price and Iron Ore Powder blast furnace process used, will be each
For the standard scores of Iron Ore Powder compared with corresponding price summation, ratio is the cost performance for representing various Iron Ore Powders.
In order to it is clearer explain above-mentioned steps the course of work, present embodiment can specifically enumerate one embodiment with
For reference, such as three kinds of Iron Ore Powders to be assessed carry out cost-efficiency analysis, three kinds of Iron Ore Powders be respectively as follows: Australia miberal powder, bar
Western miberal powder and domestic miberal powder.
According to step 1, three kinds of miberal powders of equivalent 1kg are sintered, as shown in the table, specially three kinds of miberal powders
Chemical component after sintering processes.
According to step 2, to Al2O3And SiO2Content carries out assignment, first according to the rule of Iron Ore Powder, it is specified that the iron of 1kg
After sintering mineral powder, Al2O3The a reference value of/MgO is 8, then the Al of domestic miberal powder2O3/ MgO scoring is 100 points, other two kinds of miberal powders
Then according to aluminium oxide parameter 2 points of every reduction, then benchmark scoring is increased by 10 points, aluminium oxide parameter 2 points of every increase, then by base
The standard that quasi- scoring reduces by 10 points carries out assignment, the aluminium oxide parameter scores of Brazilian miberal powder be 92.5=100- (19/2-16/2)/
2*10, the aluminium oxide parameter scores of Australia miberal powder are 85=100- (22/2-16/2)/2*10.
SiO2A reference value be 60, according to rule with benchmark SiO2When content differs at 5, the base that divides in benchmark 100
Scoring is reduced by 10 points on plinth, domestic miberal powder SiO2Parameter scores are 80=100- (| 70-60 |)/5*10, Brazilian miberal powder
SiO2Parameter scores are 30=100- (| 95-60 |)/5*10, the SiO of Australia miberal powder2Parameter scores be 60=100- (| 40-60
|)/5*10。
According to step 4, the pig iron amount that first various sinters generate count and assignment, is assigned a value of content is highest
100 parts, others decline in proportion, then according to the pig iron, Al2O3And SiO2Weighting weight, calculate every kind of Iron Ore Powder standard
Point.
According to step 5, the price and the cost in sintering exercise routine for needing to count every kind of miberal powder, thus available
Standard scores compare wastage in bulk or weight, the cost performance of every kind of Iron Ore Powder can be obtained by wastage in bulk or weight of the every kind of Iron Ore Powder in metallurgical process,
The more highest Iron Ore Powder of sexual valence can be obtained in the selection maximum Iron Ore Powder of ratio.
Based on above-mentioned steps, can the cost performance to every kind of Iron Ore Powder carry out comprehensive assessment, comprehensively considered iron ore powder sintering
Al in the process2O3And SiO2Impact effect of the content to sintering process and sinter, the pig iron generated in combination with blast furnace metallurgy
Content, summation analyze the cost performance of Iron Ore Powder, to obtain the accurate Iron Ore Powder metallurgy value evaluating system of comparison.
Utilize Al2O3And SiO2Content and pig iron content carry out assignment scoring processing, are influenced according to the cost performance on Iron Ore Powder
Degree carries out weight analysis, and calculates the standard scores of every kind of Iron Ore Powder, and standard scores are directly obtained compared with total energy consumption
The cost performance of every kind of Iron Ore Powder improves the efficiency of cost performance comprehensive analysis convenient for directly judging the highest Iron Ore Powder of cost performance, can
With the cost performance of more intuitive more every kind of Iron Ore Powder.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of Iron Ore Powder cost performance comprehensive analysis method, which is characterized in that specifically comprise the following steps:
Step 100, several equivalent Iron Ore Powders to be assessed proportion respectively mixes multiple additives, and is fired into sintering
Mine detects the scaling loss and internal chemical ingredient of each sinter, records iron ore powder sintering fuel cost and raw materials for sintering cost；
The content of step 200, the aluminium oxide in the sintered each Iron Ore Powder of calculating and silica, and aluminium oxide and silica are pressed
It carries out assigning a point processing according to content, obtains the influence scoring of aluminium oxide and silica；
The sinter that a variety of Iron Ore Powders are formed is respectively enterd blast furnace process and obtains the pig iron by step 300, and calculates blast furnace combustion
Expect cost and raw materials for metallurgy cost；
The pig iron amount that step 400, the various sinters of statistics generate, and pig iron amount is carried out to assign a point processing, and at the same time to life
Iron scoring, aluminium oxide and silica scoring are weighted and averaged, and weighted average total value is integrated as standard scores；
Various Iron Ore Powders are formed the totle drilling cost of the pig iron by step 500, statistics, and by the standard scores of a variety of Iron Ore Powders and totle drilling cost pair
Than obtaining various single fire mine cost performances.
2. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 1, it is characterised in that: in step 100,
Iron Ore Powder mainly has iron oxide, silica, calcium oxide, magnesia and oxidation by the chemical component that single fire method is sintered
Aluminium.
3. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 1, which is characterized in that in step 200,
A point specific steps for processing are assigned to aluminium oxide and silica are as follows:
Each iron ore powder sintering is obtained aluminium oxide and magnesia and compares respectively by step 201, obtains the ratio of aluminium oxide and magnesia
Value；
Alumina ratio benchmark and silica benchmark after the different iron ore powder sintering of step 202, setting；
The scoring that alumina content is in reference range is set as 100 points by step 203, the aluminium oxide ginseng smaller than a reference value
Number is scaling up scoring, and the aluminium oxide parameter bigger than a reference value reduces scoring in proportion, and the aluminium oxide for obtaining each Iron Ore Powder is commented
Point；
The value that silica is in reference range is set as 100 points by step 204, and the silica of remaining Iron Ore Powder is pressed according to rule
Then decline score, obtains the silica scoring of each Iron Ore Powder.
4. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 1, it is characterised in that: in step 100 and
Additive cost in step 300, when the raw materials for sintering cost and blast furnace process cost of material are specially sintering and smelt.
5. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 1, it is characterised in that: in step 400,
Obtain the specific steps of a variety of Iron Ore Powder standard scores are as follows:
Step 401, the pig iron amount for generating various sinters compare, and pig iron amount maximum value are set as 100 points, remaining sinter
Pig iron amount decline in proportion, obtain each Iron Ore Powder the pig iron amount scoring；
Step 402 is weighted weight processing to the scoring of pig iron amount, aluminium oxide scoring and silica scoring, obtains pig iron amount, oxygen
Change the weighting point of aluminium and silica；
Step 403, the pig iron amount by after weighted average, aluminium oxide and silica score add up, and it is cumulative after point
Value carries out secondary assignment processing, obtains the standard scores of every kind of Iron Ore Powder.
6. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 5, it is characterised in that: in step 403,
The specific steps of secondary assignment processing are as follows: compare the average weighted score that various sinters obtain, by average weighted score maximum value
It is set as 100 points, the average weighted score of remaining sinter declines in proportion, obtains the standard scores of each Iron Ore Powder.
7. a kind of Iron Ore Powder cost performance comprehensive analysis method according to claim 1, it is characterised in that: in step 500,
The totle drilling cost is specially to test fuel and additive price used in Iron Ore Powder cost of material and iron ore powder sintering used, with
And fuel used in Iron Ore Powder blast furnace process and additive price summation, by the standard scores of each Iron Ore Powder and corresponding price summation
It compares, ratio is the cost performance for representing various Iron Ore Powders.
8. using a kind of Iron Ore Powder cost performance overall analysis system of claim 1 the method, which is characterized in that specifically include
Iron ore powder sintering module, information logging modle, single fire mining and metallurgy refining module and assignment processing module, the assignment processing module also connect
It is connected to the cost performance processing module for judging Iron Ore Powder cost performance, the Iron Ore Powder is obtained through oversintering and blast furnace Metallurgical processing
The pig iron, energy consumption of the information logging modle essential record in sintering and blast furnace ironmaking process, the assignment processing module pair
The generation material of every kind of Iron Ore Powder is carried out according to unified standard assignment.
9. a kind of Iron Ore Powder cost performance overall analysis system according to claim 8, which is characterized in that the Iron Ore Powder is burnt
Knot module is by additives such as Iron Ore Powder, iron bearing slag making material, solvent and fuel, and ratio cooperates as required, and water is added to be mixed and made into particle
Shape sinter mixture, is laid on pallet, blocking through igniting down draft sintering.
10. a kind of Iron Ore Powder cost performance overall analysis system according to claim 8, which is characterized in that the cost performance
Processing module is the Iron Ore Powder assessed value for obtaining assignment processing module, each Iron Ore Powder smelting obtained respectively with information logging modle
Refining totle drilling cost is compared, and corresponding Iron Ore Powder ratio represents cost performance.
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